LAS数据查询问题

ILasDataset pNewLas = new LasDatasetClass();

pNewLas.Init(@"D:\tempfile\lasss.lasd");

ILasDatasetLayer pLasLayer = new LasDatasetLayerClass();

pLasLayer.Dataset = pNewLas;

axMapControl1.AddLayer(pLasLayer);



ILasPointCloud pCloud = pNewLas as ILasPointCloud;

ILasPointFilter lasFilter = new LasFilterClass();

lasFilter.AreaOfInterest = pNewLas.Extent;

IEnumLasPoint EnumPts = pCloud.GetLasPoints(null, lasFilter, 1, 1);

IArray pArray = new ESRI.ArcGIS.esriSystem.Array();

int pointcount=0;

EnumPts.NextLasInfo(pArray, out pointcount);